KAMERLINGH ONNES and C. A. CROMMELIN. “Isotherms of monatomic gases and of their binary 
mixtures. VII. Isotherms of argon between + 20° ©. and — 15° ©.” 
0,035 
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0090 
% 7005 
Fig. 5. 
roceedings Royal Acad. Amsterdam. Vol. XIII. 
